Improvement in tree-guards



T. D. COTTMAN. TREE-GUARD. $10,173,446. Patented Feb. 15, 1876.

Attorney UNITED STATES THOMAS D. GOTTMAN oF NEW YORK, N. Y.

IMPROVEMENT IN TREE-GUARDS.

Specification forming part of Letters Patent No. 73,44 6, dated February 15, 1876; application filed December 11, 1874. V

To all whom it may concern Be it known' that I, THOMAS D. OoTTMAN, of the city of New York and State of New York, in the United States of America, have invented a certain Tree-Guard, of which the following is a specification A The object of my invention -is toprotect from injury and preserve the health of the roots of trees growing in a highway or elsewhere by keeping the asphalt or pavement at a distance of three feet, more or less, from the trunks, and permitting the access of light, air, and moisture thereto, and the escape of gases from the surrounding earth by keeping such earth loose,and preventing packing.which renders it impervious to moisture and escaping gases, andto obviate the spreading of the soil left otherwise exposed over the roadway. At

a distance of three feet or thereabout from the center of the trunl; of the tree is securely bedded the curb D, cast or wrought, in sections, with a flange or lugs to support the two semicircular gratings or reticulated covers, BB.

1 At several points on the inner'side of these gratings are cast or set the lugs O O, by

bound together, and which support the interior gratings EE. These gratings or reticulated THOS. D. COTTMAN.

Witnesses:

JOHN BUOKINGHAM, T. O. E. EooLEsINE.

means of which the exterior gratings are.

covers, as well as the curb, may be'made of 

